Zappos.com is proud to offer the Sorel Kids - Snow Trooper TP (Toddler/Youth) (Black) - Footwear: Now you can spend all day trooping through the snow and mom never has to worry about cold or wet feet. ; Waterproof synthetic upper with PU backing. ; Seam-sealed waterproof construction. ; Removable 9mm Thermoplus™ felt inner boot will keep your feet toasty warm. ; Bungee collar with cord lock helps keep the snow out. ; Ankle strap with hook-and-loop closure helps ensure a secure fit. ; 2.5mm bonded felt frost plug. ; Injection molded thermal rubber shell is waterproof. ; Multi-directional lug outsole enhances traction. ; Temperature rated: -40ºF/-40ºC ; Shaft: 7 in ; Circumference: 13 in ; Weight: 13 oz ; Product measurements were taken using size 8 Toddler. Please note that measurements may vary by size.